import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.lang.reflect.*;
import org.apache.commons.codec.binary.Base64;

import sun.misc.BASE64Encoder;
import sun.misc.BASE64Decoder;

public class des_zm {
	/*
	 * static final鏄〃绀轰簡鍙锛屽垏鑳藉湪鍚屼竴涓繘绋嬬┖闂村唴鐨勫涓�Instance闂村叡浜�
	 */
	private String strDefaultKey = "DLP@1234";
	public String digestHexStr;
	// 28
	static final int pc_1_cp[] = { 57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42,
			34, 26, 18, 10, 2, 59, 51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36 };
	// 28
	static final int pc_1_dp[] = { 63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46,
			38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4 };
	// 48
	static final int pc_2p[] = { 14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10,
			23, 19, 12, 4, 26, 8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55,
			30, 40, 51, 45, 33, 48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29,
			32 };
	// 16
	static final int ls_countp[] = { 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2,
			2, 1 };
	// 64
	static final int iip_tab_p[] = { 58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44,
			36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40,
			32, 24, 16, 8, 57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27,
			19, 11, 3, 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23,
			15, 7 };
	// 64
	static final int _iip_tab_p[] = { 40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47,
			15, 55, 23, 63, 31, 38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45, 13,
			53, 21, 61, 29, 36, 4, 44, 12, 52, 20, 60, 28, 35, 3, 43, 11, 51,
			19, 59, 27, 34, 2, 42, 10, 50, 18, 58, 26, 33, 1, 41, 9, 49, 17,
			57, 25 };
	// 48
	static final int e_r_p[] = { 32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10,
			11, 12, 13, 12, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21,
			22, 23, 24, 25, 24, 25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1 };
	// 32
	static final int local_PP[] = { 16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23,
			26, 5, 18, 31, 10, 2, 8, 24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22,
			11, 4, 25 };
	// [8][4][16]
	static final int ccom_SSS_p[][][] = {
			{ { 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 },
					{ 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8 },
					{ 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0 },
					{ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 } },

			{ { 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 },
					{ 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5 },
					{ 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15 },
					{ 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 } },

			{ { 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 },
					{ 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1 },
					{ 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7 },
					{ 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 } },

			{ { 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 },
					{ 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9 },
					{ 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4 },
					{ 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 } },

			{ { 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 },
					{ 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6 },
					{ 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14 },
					{ 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 } },

			{ { 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 },
					{ 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8 },
					{ 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6 },
					{ 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 } },

			{ { 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 },
					{ 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6 },
					{ 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2 },
					{ 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 } },

			{ { 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 },
					{ 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2 },
					{ 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8 },
					{ 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 } } };

	byte[][] C = new byte[17][28];
	byte[][] D = new byte[17][28];
	byte[][] K = new byte[17][48];

	public des_zm() {
		return;
	}

	public des_zm(String key) {
		this.strDefaultKey = key;
	}

	/*
	 * iu2b鎶奿nt杞崲鎴恇yte
	 */
	private static byte iu2b(int input) {
		byte output1;
		output1 = (byte) (input & 0xff);
		return output1;
	}

	/*
	 * b2iu鎶奲yte鎸夌収涓嶈�铏戞璐熷彿鐨勫師鍒欑殑锛傚崌浣嶏紓鎴恑nt绋嬪簭锛�鍥犱负java娌℃湁unsigned杩愮畻
	 */
	private static int b2iu(byte b) {
		return b < 0 ? b & 0x7F + 128 : b;
	}

	/*
	 * byteHEX()锛岀敤鏉ユ妸涓�釜byte绫诲瀷鐨勬暟杞崲鎴愬崄鍏繘鍒剁殑ASCII琛ㄧず锛�
	 * 鍥犱负java涓殑byte鐨則oString鏃犳硶瀹炵幇杩欎竴鐐癸紝鎴戜滑鍙堟病鏈塁璇█涓殑
	 * sprintf(outbuf,"%02X",ib)
	 */
	public static String byteHEX(byte ib) {
		char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A',
				'B', 'C', 'D', 'E', 'F' };
		char[] ob = new char[2];
		ob[0] = Digit[(ib >>> 4) & 0X0F];
		ob[1] = Digit[ib & 0X0F];
		String s = new String(ob);
		return s;
	}

	/*
	 * desMemcpy鏄竴涓唴閮ㄤ娇鐢ㄧ殑byte鏁扮粍鐨勫潡鎷疯礉鍑芥暟锛�浠巌nput鐨刬npos寮�鎶妉en闀垮害鐨�
	 * 瀛楄妭鎷疯礉鍒皁utput鐨刼utpos浣嶇疆寮�
	 */
	private void desMemcpy(byte[] output, byte[] input, int outpos, int inpos,
			int len) {
		int i;
		for (i = 0; i < len; i++)
			output[outpos + i] = input[inpos + i];
	}

	private void Fexpand0(byte[] in, byte[] out) {
		int divide;
		int i, j;
		byte temp1;

		for (i = 0; i < 8; i++) {
			divide = 7;
			for (j = 0; j < 8; j++) {
				temp1 = in[i];
				out[8 * i + j] = iu2b((b2iu(temp1) >>> divide) & 1);
				divide--;
			}
		}
	}

	private void FLS(byte[] bits, byte[] buffer, int count) {
		int i, j;
		for (i = 0; i < 28; i++) {
			buffer[i] = bits[(i + count) % 28];
		}
	}

	private void Fson(byte[] cc, byte[] dd, byte[] kk) {
		int i, j;
		byte[] buffer = new byte[56];
		for (i = 0; i < 28; i++)
			buffer[i] = cc[i];

		for (i = 28; i < 56; i++)
			buffer[i] = dd[i - 28];

		for (i = 0; i < 48; i++)
			kk[i] = buffer[pc_2p[i] - 1];
	}

	private void Fsetkeystar(byte[] bits) {
		int i, j;

		for (i = 0; i < 28; i++)
			C[0][i] = bits[pc_1_cp[i] - 1];
		for (i = 0; i < 28; i++)
			D[0][i] = bits[pc_1_dp[i] - 1];
		for (j = 0; j < 16; j++) {
			FLS(C[j], C[j + 1], ls_countp[j]);
			FLS(D[j], D[j + 1], ls_countp[j]);
			Fson(C[j + 1], D[j + 1], K[j + 1]);
		}
	}

	private void Fiip(byte[] text, byte[] ll, byte[] rr) {
		int i, j;
		byte[] buffer = new byte[64];
		byte[] tmp = new byte[64];
		Fexpand0(text, buffer);

		for (i = 0; i < 32; i++)
			ll[i] = buffer[iip_tab_p[i] - 1];

		for (i = 0; i < 32; i++)
			rr[i] = buffer[iip_tab_p[i + 32] - 1];
	}

	private void Fs_box(byte[] aa, byte[] bb) {
		int i, j, k, m;
		int y, z;
		byte[] ss = new byte[8];
		m = 0;
		for (i = 0; i < 8; i++) {
			j = 6 * i;
			y = b2iu(aa[j]) * 2 + b2iu(aa[j + 5]);
			z = b2iu(aa[j + 1]) * 8 + b2iu(aa[j + 2]) * 4 + b2iu(aa[j + 3]) * 2
					+ b2iu(aa[j + 4]);
			ss[i] = iu2b(ccom_SSS_p[i][y][z]);
			y = 3;
			for (k = 0; k < 4; k++) {
				bb[m++] = iu2b((b2iu(ss[i]) >>> y) & 1);
				y--;
			}

		}
	}

	private void FF(int n, byte[] ll, byte[] rr, byte[] LL, byte[] RR) {
		int i, j;
		byte[] buffer = new byte[64], tmp = new byte[64];
		for (i = 0; i < 48; i++)
			buffer[i] = rr[e_r_p[i] - 1];
		for (i = 0; i < 48; i++)
			buffer[i] = iu2b((b2iu(buffer[i]) + b2iu(K[n][i])) & 1);

		Fs_box(buffer, tmp);

		for (i = 0; i < 32; i++)
			buffer[i] = tmp[local_PP[i] - 1];

		for (i = 0; i < 32; i++)
			RR[i] = iu2b((b2iu(buffer[i]) + b2iu(ll[i])) & 1);

		for (i = 0; i < 32; i++)
			LL[i] = rr[i];
	}

	private void _Fiip(byte[] text, byte[] ll, byte[] rr) {
		int i, j;
		byte[] tmp = new byte[64];
		for (i = 0; i < 32; i++)
			tmp[i] = ll[i];
		for (i = 32; i < 64; i++)
			tmp[i] = rr[i - 32];
		for (i = 0; i < 64; i++)
			text[i] = tmp[_iip_tab_p[i] - 1];
	}

	private void Fcompress016(byte[] out, byte[] in) {
		int times;
		int i, j;

		for (i = 0; i < 16; i++) {
			times = 3;
			in[i] = '0';
			for (j = 0; j < 4; j++) {
				in[i] = iu2b(b2iu(in[i]) + (b2iu(out[i * 16 + j]) << times));
				times--;
			}
		}
	}

	void Fcompress0(byte[] out, byte[] in) {
		int times;
		int i, j;

		for (i = 0; i < 8; i++) {
			times = 7;
			in[i] = 0;
			for (j = 0; j < 8; j++) {
				in[i] = iu2b(b2iu(in[i]) + (b2iu(out[i * 8 + j]) << times));
				times--;
			}
		}
	}

	private void Fencrypt0(byte[] text, byte[] mtext) {
		byte[] ll = new byte[64], rr = new byte[64], LL = new byte[64], RR = new byte[64];
		byte[] tmp = new byte[64];
		int i, j;
		Fiip(text, ll, rr);

		for (i = 1; i < 17; i++) {
			FF(i, ll, rr, LL, RR);
			for (j = 0; j < 32; j++) {
				ll[j] = LL[j];
				rr[j] = RR[j];
			}
		}

		_Fiip(tmp, rr, ll);

		Fcompress0(tmp, mtext);
	}

	private void FDES(byte[] key, byte[] text, byte[] mtext) {
		byte[] tmp = new byte[64];
		Fexpand0(key, tmp);
		Fsetkeystar(tmp);
		Fencrypt0(text, mtext);
	}

	/* 鍔犲瘑 */
	public int ENCRYPT(byte[] key, byte[] s, byte[] d, int len) {
		int i, j;
		byte[] cData = new byte[8];
		byte[] cEncryptData = new byte[8];
		for (i = 0; i < len; i += 8) {
			if ((i + 8) > len) {
				desMemcpy(cData, s, 0, i, len - i);
				for (j = len - i; j < 8; j++)
					cData[j] = 0;
			} else
				desMemcpy(cData, s, 0, i, 8);
			FDES(key, cData, cEncryptData);
			desMemcpy(d, cEncryptData, i, 0, 8);

		}
		return i;
	}

	private void Fdiscrypt0(byte[] mtext, byte[] text) {
		byte[] ll = new byte[64], rr = new byte[64], LL = new byte[64], RR = new byte[64];
		byte[] tmp = new byte[64];
		int i, j;
		Fiip(mtext, ll, rr);

		for (i = 16; i > 0; i--) {
			FF(i, ll, rr, LL, RR);
			for (j = 0; j < 32; j++) {
				ll[j] = LL[j];
				rr[j] = RR[j];
			}
		}

		_Fiip(tmp, rr, ll);

		Fcompress0(tmp, text);
	}

	/***************************************************************************
	 * function: DES parameter: u_char * key ; key for encrypt u_char * mtext ;
	 * encipher data u_char * text ; plain data return: none
	 **************************************************************************/
	private void _FDES(byte[] key, byte[] mtext, byte[] text) {
		byte[] tmp = new byte[64];
		Fexpand0(key, tmp);
		Fsetkeystar(tmp);
		Fdiscrypt0(mtext, text);
	}

	/* 瑙ｅ瘑 */
	public int DECRYPT(byte[] key, byte[] s, byte[] d, int len) {
		int i;
		byte[] cData = new byte[8];
		byte[] cEncryptData = new byte[8];
		for (i = 0; i < len; i += 8) {
			desMemcpy(cEncryptData, d, 0, i, 8);
			_FDES(key, cEncryptData, cData);
			desMemcpy(s, cData, i, 0, 8);
		}
		return i;
	}

	public static byte[] hexStr2ByteArr(String strIn) {
		byte[] arrB = strIn.getBytes();
		int iLen = arrB.length;

		// 涓や釜瀛楃琛ㄧず涓�釜瀛楄妭锛屾墍浠ュ瓧鑺傛暟缁勯暱搴︽槸瀛楃涓查暱搴﹂櫎浠�
		byte[] arrOut = new byte[iLen / 2];
		for (int i = 0; i < iLen; i = i + 2) {
			String strTmp = new String(arrB, i, 2);
			arrOut[i / 2] = (byte) Integer.parseInt(strTmp, 16);
		}
		return arrOut;
	}

	/**
	 * 鍔犲瘑锛岃繑鍥瀊ase64缂栫爜瀵嗘枃
	 * 
	 * @param str
	 * @return
	 */
	public String Encode(String str) {
		int i1;
		if (str == null || "".equals(str)) {
			return null;
		}
		// String digestHexStr;
		byte[] strByte = str.getBytes();
		int mLen = strByte.length % 8 != 0 ? (strByte.length / 8 + 1) * 8
				: strByte.length;
		byte[] secratByte = new byte[mLen];
		byte[] srcByte = new byte[mLen];
		// 灏忓潡澶勭悊
		System.arraycopy(strByte, 0, srcByte, 0, strByte.length);

		for (int i = strByte.length; i < mLen; i++) {
			srcByte[i] = ' ';
		}

		i1 = ENCRYPT(strDefaultKey.getBytes(), srcByte, secratByte, mLen);

		String base64Str = new String(Base64.encodeBase64(secratByte));

		return base64Str;
	}

	/**
	 * 瑙ｅ瘑
	 * 
	 * @param str
	 * @return
	 */
	public String Decode(String str) {
		int i2;
		if (str == null || "".equals(str)) {
			return null;
		}
		byte[] strByte = Base64.decodeBase64(str.getBytes());// 瀵嗘枃
		int len = strByte.length;
		byte[] mingByte = new byte[len];

		i2 = DECRYPT(strDefaultKey.getBytes(), mingByte, strByte, len);

		return new String(mingByte, 0, i2);
	}

	public static void main(String args[]) throws IOException {

		des_zm m = new des_zm();
		// String s = "12345678";
		// String miwen = m.Encode(s);
		// System.out.println("加密的:[" + miwen + "]");
		//
		// String minwen = m.Decode(miwen).toString();
		// System.out.println("解密的:[" + minwen + "]");

		String s = null;
		FileReader fr = null;
		try {
			// 创建字符输入流
			fr = new FileReader("vlog.xml");
			// 创建一个长度为32的“竹筒”
			char[] cbuf = new char[32];
			// 用于保存实际读取的字符数
			int hasRead = 0;
			// 使用循环来重复“取水”过程
			while ((hasRead = fr.read(cbuf)) > 0) {
				s += new String(cbuf, 0, hasRead);
			}
		} catch (IOException ioe) {
			ioe.printStackTrace();
		} finally {
			// 使用finally块来关闭文件输入流
			if (fr != null) {
				fr.close();
			}
		}

		String miwen = m.Encode(s);
		System.out.println(miwen);

	}
}
